Intraspecific length heterogeneity of the rDNA-IGR in Arabidopsis thaliana due to homologous recombination
- 1 June 1993
- journal article
- Published by Springer Nature in Plant Molecular Biology
- Vol. 22 (3) , 543-545
- https://doi.org/10.1007/bf00015983
Abstract
A new heterogeneity of the rDNA spacer of Arabidopsis thaliana, resulting from variation in copy number of the so-called ‘C’ repeat located downstream of the presumptive polymerase I promoter, is reported. Variation is shown to occur within and between ecotypes. PCR analysis and sequence comparison suggests that the observed length heterogeneity is due to homologous recombination.Keywords
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